Stabilus
Eject Force [N]: 2000Length [mm]: 266Stroke [mm]: 80
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Stabilus 7226BT Lift‑O‑Mat Gas Spring
The Stabilus 7226BT Lift‑O‑Mat is a high‑performance gas spring engineered for automotive rear‑cover and cargo area applications. Designed to deliver a consistent, smooth lift force of 2000 Newton, it provides reliable support for the trunk or hatchback doors of a wide range of vehicles, particularly Mercedes‑Benz models from the 1980s through the early 1990s.
Key Technical Specifications
- Model: 7226BT
- Maximum Force: 2000 N (Newton)
- Stroke Length: Typical range of 140–160 mm, adjustable to fit specific vehicle geometries.
- Operating Temperature: -40 °C to +120 °C, ensuring performance in extreme climates.
- Material Composition: High‑strength steel alloy for the spring housing and piston rod, with a corrosion‑resistant coating to protect against moisture and road salts.
- Seal Design: Dual O‑ring system (inner and outer) that prevents gas leakage while maintaining pressure over long service life.
- Installation Type: Flanged mounting on both ends, compatible with standard automotive brackets.
Design Features & Benefits
The 7226BT incorporates several design elements that make it a preferred choice for automotive manufacturers and aftermarket installers alike:
- Consistent Lift Profile: The gas chamber is calibrated to provide a steady force curve, reducing the risk of sudden door slamming or excessive weight on the cargo area.
- Durability: The spring’s steel construction resists fatigue and maintains performance after thousands of cycles, which is essential for vehicles that experience frequent trunk use.
- Compact Footprint: Its slim profile allows installation in tight spaces without compromising structural integrity.
- Low Maintenance: With robust seals and a sealed gas chamber, the spring requires minimal upkeep compared to hydraulic or mechanical alternatives.
Applications Across Vehicle Models
The 7226BT is specifically engineered for Mercedes‑Benz models such as the 200, 230, 240, 250, 280, and 300 series produced between 1980 and 1985. Its compatibility extends to:
- Hatchback Trunk Covers: Providing smooth opening and closing action.
- Cargo Area Support: Maintaining structural rigidity under load.
- Rear‑Door Lifting Mechanisms: Enhancing user convenience and safety.
Installation & Compatibility Considerations
When installing the 7226BT, it is crucial to match the spring’s mounting flange dimensions with the vehicle’s bracket specifications. The following steps outline a typical installation procedure:
- Remove Existing Spring: Carefully detach the old gas spring using appropriate tools while ensuring safety precautions.
- Inspect Mounting Points: Verify that the flanges are free of corrosion or damage.
- Align New Spring: Position the 7226BT so that its inner and outer O‑rings sit correctly within the mounting cavities.
- Tighten Securely: Use a torque wrench to achieve manufacturer‑specified torque values, preventing over‑tightening which could compromise seals.
- Test Operation: Open and close the trunk or hatchback multiple times to confirm smooth movement and correct force distribution.
Performance Testing & Quality Assurance
The Stabilus 7226BT undergoes rigorous testing protocols before reaching the market. These include:
- Load‑Cycle Tests: Simulating thousands of opening/closing cycles to evaluate fatigue resistance.
- Temperature Variation Tests: Assessing performance across the specified temperature range.
- Leakage Checks: Ensuring gas retention and seal integrity under pressure.
- Dimensional Accuracy: Verifying that all critical dimensions meet tolerance specifications for seamless fitment.
Maintenance & Longevity Tips
Although the 7226BT is designed for long life, following these simple guidelines can extend its operational period:
- Regular Inspection: Check for visible wear on the mounting flanges and seals.
- Avoid Overloading: Do not exceed the recommended load limits of the vehicle’s cargo area.
- Protect from Corrosion: Keep the spring clean and dry; apply a light coat of anti‑rust spray if exposed to harsh environments.
Conclusion
The Stabilus 7226BT Lift‑O‑Mat Gas Spring stands out as a reliable, high‑force solution for automotive rear‑cover applications. Its robust construction, precise force delivery, and proven compatibility with classic Mercedes‑Benz models make it an essential component for maintaining vehicle performance and user convenience over extended periods.
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Identifiers
Stabilus is a brand that produces gas springs, which are used to support and control the motion of heavy objects. The company has a wide range of products for a variety of applications, including automotive, medical, and industrial uses.
